Point estimate proportion is the average of lower and upper interval limit.
Point estimate proportion )p) = x/n
Where x = observations, n=sample size
Substituting;
p= 40/493 = 0.0811
Step-by-step explanation:
Rudra should have collected the students equally both from football and pump basketball
we have

Group terms that contain the same variable, and move the constant to the opposite side of the equation

Factor the leading coefficient
----------> the value of A is 
Complete the square. Remember to balance the equation by adding the same constants to each side


Rewrite as perfect squares


therefore
the answer is
the value of A is 